Question
Packet Q is one-third as heavy as Packet R. Packet S is 4 times as heavy as Packets Q and R together. What is the mass of Packet S if Packet R is k kg?
2 m

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Packet Q is one-third as heavy as Packet R. Packet S is 4 times as heavy as Packets Q and R together. What is the mass of Packet S if Packet R is k kg?